This is a great wine rack.  I have a room dedicated to my wine collection and I have now purchased two.  First, it's a snap to assemble.  I am 63 and not all savvy with tools but this nifty wine rack goes together in a flash and is extremely sturdy.  I now have two, side by side with double rows of wine on each shelf, roughly 75 bottles on each rack. I might not store so much wine on it if I lived in earthquake country, but it's pretty secure and I don't allow my large rowdy dogs free reign in that area of the house. it creates a beautiful display with all of the wines visible for easy perusal

Easy assembly, great storage capacity and very sturdy.
None!